| Type | Filed | Filer | Subject | Shares Owned | Percent Owned | |
|---|---|---|---|---|---|---|
| SC 13G/A | 2019-02-12 | STATE STREET CORP | WILLIAMS COMPANIES INC | - | 4.8% | EDGAR |
| SC 13G/A | 2019-02-11 | BlackRock Inc. | WILLIAMS COMPANIES INC | 136,747,118 | 11.3% | EDGAR |
| SC 13G/A | 2019-02-11 | VANGUARD GROUP INC | WILLIAMS COMPANIES INC | 96,306,536 | 8.0% | EDGAR |
| SC 13G/A | 2018-09-10 | FMR LLC | WILLIAMS COMPANIES INC | 32,241,692 | 2.7% | EDGAR |
| SC 13D/A | 2018-08-10 | WILLIAMS COMPANIES INC | WILLIAMS PARTNERS L.P. | 0 | 0.0% | EDGAR |
| SC 13D/A | 2018-05-17 | WILLIAMS COMPANIES INC | WILLIAMS PARTNERS L.P. | 720,661,151 | 73.8% | EDGAR |
| SC 13G/A | 2018-03-08 | BlackRock Inc. | WILLIAMS COMPANIES INC | 84,031,456 | 10.2% | EDGAR |
| SC 13G/A | 2018-02-13 | FMR LLC | WILLIAMS COMPANIES INC | 67,272,872 | 8.1% | EDGAR |
| SC 13G | 2018-02-13 | STATE STREET CORP | WILLIAMS COMPANIES INC | - | 5.1% | EDGAR |
| SC 13G/A | 2018-02-09 | VANGUARD GROUP INC | WILLIAMS COMPANIES INC | 62,443,604 | 7.6% | EDGAR |
| SC 13G/A | 2018-01-23 | BlackRock Inc. | WILLIAMS COMPANIES INC | 77,427,709 | 9.4% | EDGAR |
| SC 13G/A | 2017-02-14 | FMR LLC | WILLIAMS COMPANIES INC | 80,845,251 | 10.8% | EDGAR |
| SC 13G/A | 2017-02-10 | VANGUARD GROUP INC | WILLIAMS COMPANIES INC | 50,457,794 | 6.7% | EDGAR |
| SC 13G | 2017-02-10 | STATE STREET CORP | WILLIAMS COMPANIES INC | - | 5.2% | EDGAR |
| SC 13G/A | 2017-01-27 | BlackRock Inc. | WILLIAMS COMPANIES INC | 48,889,691 | 6.5% | EDGAR |
| SC 13D/A | 2017-01-13 | WILLIAMS COMPANIES INC | WILLIAMS PARTNERS L.P. | 711,249,337 | 73.8% | EDGAR |
| SC 13D/A | 2017-01-10 | WILLIAMS COMPANIES INC | WILLIAMS PARTNERS L.P. | 660,201,988 | 72.3% | EDGAR |
| SC 13G | 2016-09-12 | FMR LLC | WILLIAMS COMPANIES INC | 76,828,500 | 10.2% | EDGAR |
| SC 13D/A | 2016-09-02 | WILLIAMS COMPANIES INC | WILLIAMS PARTNERS L.P. | 362,954,369 | 59.3% | EDGAR |
| SC 13D/A | 2016-08-03 | Corvex Management LP | WILLIAMS COMPANIES INC | 30,886,639 | 4.1% | EDGAR |